Underwater tank banger



FIG. 1 is a perspective view of an underwater tank banger showing my new design;

FIG. 2 is a top plan view thereof, the bottom view being a mirror image;

FIG. 3 is a first side elevational view thereof;

FIG. 4 is a opposite side elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a back elevational view thereof. 

The ornamental design for a underwater tank banger, as shown and described. 